Side bearing for railway-vehicles and the like.



L. JANSE.

SIDE BEARING FOR RAlLWAY VEHICLES AND THE LIKE.

APPLICATION FILED MAYI, 1911.

1,257,358. Patented Feb-.26,1918.

11 secured to the journal boxes 12 and 13 for the wheel axles.

The lower end of the depending member 8 is formed by a lateral projection 1t extending in a d rection parallel with the bolt or pivot a and whose length is greater than the width of the slot 7 extending in a direction at right angles with the said pivot 4, of. Figs. 4:, 5 and 6. The top 1.5 of the lateral projection 14: is rounded so as to reduce friction, the clearance between this top and the bottom side of the plate 9 of the bogie bolster being about 2 to 3 millimeters for meter age, when the car body assumes its normal position. The slots 6 and 7 are given a length that will suit the maximui swing of the depending member 3 that is likely to occur.

It will now be clear what the fundamental difference is between my improved side bearing and the known constructions. With the latter the side bearing at that side of the car body which moves downward is under strain of pressure, whereas my improved side bearing is under strain of tension at-the rising side of the car.

The advanta eous features of my improved side bearing as stated in the preamble of this specification will now be fully appreciated. Owing to the articulating connection between the depending n ember 8 and the transom 1, 2, the movements of the bogie are not interfered with if the depending member 3 is under strain of tension. Besides, the lower end of the depending member 3 is free to move in the slots 6 and 7, so that said member may always assume a vertical position even in case the bogie has turned a certain angular distance with respect to the car body. This freedom of movement accounts for the reduced friction between the wheel tire flanges and the rails, and consequentl for the reduced wear and tear.

As already stated above. the clearance bc tween the bearing surface of the side bearing and the bearing surface of the bogie boister needs only be about 23 millimeters for meter gage; with the usual constructions iis clearance is about 10 millimeters. which nec essarily causes considerable bumping and tipping of the car body.

Fig. 7 illust ates a ball or knuckle joint between the depending member 3 and the transom l, 2. in this figure, 16 a knuckle formed at the end of the member 3, the said knuckle being engaged between two semispherical depressions in the downwardly depending bearing 18 bolted to the angle irons 2 of the body-bolster. It has however been found in practice that a simple pivot l as shown in Figs. 1 and 2 is quite sufficient and well adapted for the purpose stated.

The lower end of the depending member 3 may engage the bogie bolster through a coiled spring or through a resilient rubber cushion. A construction with a coiled spring is shown in Fig. 8, wherein is the depending member passing through a slot 7 in the plate 9 of the bogie bolster. The lower end of said member is provided with a pressure disk or washer 19 secured thereon by means of a nut :20 and a split pin 21, a coiled spring 22 being provided between said disk or washer and the plate 9.

Fig. 9 illustrates a depending member provided at its lower end with rollers for minimizing the friction between said member and the bogie bolster when the bogie rounds a curve. In this figure, 3 is the depending member, l its pivot and 9 the bottom plate of the box-pattern bogie bolster. The lateral projection ll of the member 3 is provided at both ends with journals 23, 2st integral therewith rollers 25 and 26 being rotatably mounted on said journals and secured thereon by any suitable means such as nuts 2?, 28 and split pins :29, 30. If so desired the rollers :25 and 26 might be mounted on ball or roller bearings.

Having now particularly described and ascertained the nature of my present invention and in what manner the same is to be performed, I declare that what I claim is:

1. In a vehicle of the type referred to, a car body pivotally supported by a bogie, and depending members articulated to said body at two or more points on opposite sides of the center bearing, the said members passing through openings in the bogie bolster extending in a direction at substan tially right angles to the wheel axles of the vehicle, so as to be free to follow the clownward movements of that side of the body to wnich it is articulated, but adapted to on gage the bogie on the reverse movement of the body.

2. In a vehicle of the type referred to, a car body pivotally supported by a bogie, and depending members articulated to said body at two or more points on opposite sides of the center bearing, the lower end of the said depending members passing through slots extending in the bogie bolster in a direction at substantially right angles to the wheel axles, and being provided with lateral projections extending substantially parallel with the said wheel axles.

3. In a vehicle of the type referred to, a car body pivotally supported by a bogie, de .1 0 pending members articulated to said body at two or more points on opposite sides of the center bearing, the lower end of the said dedepending members passing through slots extending in the bogie bolster in a direction at substantially right angles to the wheel axles, and resilient means provided between the lower end of the said members and the bearing plate of the bogie bolster.

41-. In a vehicle of the type referred to, a

car body pivotally supported by a bogie, deaxles, and rolling means at the lower end of pending members articulated to said body said depending members and adapted to enat two or more points on opposite sides of gage the bearing plate of the bogie bolsterrla the center bearing, the lower end of the said Signed at Scheveningen, the Netherlands,

5 depending members passing through slots this 24th day of March, A. D. 1917.

extending in the bogie bolster in a direction at substantially right angles to the Wheel LEENDERT JANSE.

Copies 01' this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

